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update doc string

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Nikolay Kim 2018-03-11 09:36:54 -07:00
parent 9ddf5a3550
commit a4c933e56e
2 changed files with 3 additions and 2 deletions
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3
guide/src/qs_4.md
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@ -238,9 +238,10 @@ Both methods could be combined. (i.e Async response with streaming body)
## Different return types (Either) ## Different return types (Either)
Sometimes you need to return different types of responses. For example Sometimes you need to return different types of responses. For example
you can do error check and return error, otherwise return async response. you can do error check and return error and return async response otherwise.
Or any result that requires two different types. Or any result that requires two different types.
For this case [*Either*](../actix_web/enum.Either.html) type can be used. For this case [*Either*](../actix_web/enum.Either.html) type can be used.
*Either* allows to combine two different responder types into a single type.
```rust ```rust
# extern crate actix_web; # extern crate actix_web;

2
src/handler.rs
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@ -34,7 +34,7 @@ pub trait Responder {
fn respond_to(self, req: HttpRequest) -> Result<Self::Item, Self::Error>; fn respond_to(self, req: HttpRequest) -> Result<Self::Item, Self::Error>;
} }
/// Combines two different responders types into a single type /// Combines two different responder types into a single type
/// ///
/// ```rust /// ```rust
/// # extern crate actix_web; /// # extern crate actix_web;